Sorry you can only open it in the Desktop installed program. If you paid for the Online version you can ask for the Desktop download. What year? But if you get it installed you also need to download any state programs in your file. So you might have to buy any state programs after the first free state before you can open the .taxyyyy file.
How to contact Turbo Tax
https://ttlc.intuit.com/community/using-turbotax/help/how-do-i-contact-turbotax/00/26991
